Improvement in machines for rolling band or hoop iron



ENEVEGOLD. Machines for Rolling Band or Hoop Iron.

Patented Dec. 25, 1877.

UNITED, (S TATE s PATENT FFIoE.

. FREDERICK NEVEGOLD, OF BRISTOL, PENNSYLVANIA.

IMPROVEEMENT IN MACHINES FOR ROLLING'BAND OR HOOP IRON.

Specification forming part of Letters Patent N0. 198,667, dated December25, 1877; application filed l I May 1, 1877. I

To all whom it may concern:

Be it known that I, FREDERICK NEvnGoLD, of Bristol, Bucks county,Pennsylvania, have invented certain Improvements in Machinery forRolling Band or Hoop Iron, of which the following is a specification:

The object of my invention is to construct a mill for rolling hoop andband ir'on direct from a billet or pile at one passan object which Iattain in the manner hereinafter set forth, reference being. had to theaccompanying drawing, in which--- I Figure 1 represents a side view,partly in section, of a train of rolls for carrying my inventionintoeffect; Fig. 2, a plan view of a portion of the same; and Figs. 3,4, 5, and 6,

enlarged views of parts of the apparatus.

Themain feature of my invention is the use of a series of alternatevertical grooved edgingrolls, Figs 1 and 5, and horizontal tongued andgrooved flattening-rolls, Figs. 1 and 4, the size of the opening formedby the grooves in the rolls gradually diminishing from one end of themachine to the other, so that the draft upon the bar shall be uniformand continuous, a billet or {pile introduced into the machine at one endbeing reduced alternately on its flat sides and its edges until itisfmally discharged in the condition of a thin strip.

In the present instance I have shown three pairs of vertical rolls, A,B, and O, and four pairs of horizontal rolls, A, B, O, and D, two pairsof horizontal rolls being arranged at the rear end of the machine, andthe others alternatin g with the vertical rolls.

The number and arrangement of the rolls may, however, be varied ascircmnstances may.

suggest.

The grooves of the vertical rolls are in line with each other; but thegrooves of the upper horizontal roll are in line with the collars on thelower horizontal roll, and said horizontal rolls are provided withcollars and grooves of varying widths, so that by sliding the housingsof these rolls on the foundation-plates I the mill may be adapted to therolling of strips of different sizes.

The adaptation of the vertical rolls to the working of strips ofdifferent sizes is effected by moving the said rolls from and towardeach other by operating wedge-shaped blocks E,

which are used in connection with both the upper and lower bearings forthe necks of the rolls, and are illustrated in Fig. 6.

From each pair of rolls to the adjacent pair extends a box or guide, F,which serves to receive the strip from one pair of rolls and guide it tothe groove in the next pair, the guiding being effected by a top strip,a, and side strips c" at the ends of thelooxesl. The strips a and, ifdesired, the strips a are rendered adjustable by means of set-screws ,b,so that they may be made to conform to the size of the groove or openingfrom which they receive or to which they deliver the strip. By thismeans I am enabled to properly guide the strip in its passage from rollto roll, and yet overcome that excessive fliction on the strip whichresults when the entire lengtlr of the sides or top of the box are incontact with the strip. The box F is rigidly carried at either end by arest;bar, c, on the housing adjacent to that end; 'andin order to allowfor the longitudinal expansion and contraction of the 1 box, owing tothe varying degrees of heat to which it is subjected, I make said box intwo or more sections, connected together in such a manner that they canslide longitudinally on each other. By this means the truth of the guideis never affected by that warping or twisting to which a rigid guidewould be subject.

All the rolls are driven from one countershaft, G, one bevel-wheel, d,on said shaft serving to impart movement to both a pair of vertical anda pair of horizontal rolls, or to apair of horizontal rolls and twopairs of vertical rolls, in the manner hereinafter described. Thebevel-wheel (1 gears into a bevel-pinion, e, on a shaft, 13, whichcarries a clutch, f, the latter engaging with a clutch, f, on the shaftof one of the horizontal rolls, and said shaft being geared to the shaftof'the other horizontal roll by cog-wheels g. The clutch f carries acog-wheel, h, which gears into pinions j carried by shafts m, the latterbeing provided with bevel-wheelsn a, which gear into bevel-pinions s 8carried by the shafts of the pairs of verti' cal rolls on either side ofthe pair of horizontal rolls. The shafts m are provided with feathersadapted to slots in the hubs of the wheels n a, so that the latter maybe moved to and fro on the shaft as the rolls are moved from and towardeach other, for the purpose hereinbefore mentioned.

When but one pair of vertical rolls is to be driven from the shaft i,one of the shafts m and its connections is dispensed with.

It should be noticed that my invention is distinct from that class ofhoop or band rollin g mills in which plane-faced rolls or simple groovedrolls are used, as mills of this class require the billet to be firstrolled into a size of about the same width as that of the-finishedstrip, the reduction efl'ected being merely in.

I claim as my invention 1. A mill for rolling hoop or band iron in whichvertical grooved edging-rolls alternate with horizontal tongued andgrooved flattening-rolls, all substantially as specified.

2. The combination of the two sets of rolls with an intervening box orguide, F, having guiding-strips a a at each end, as set forth.

3. The combination of the two pairs of rolls with an intervening box orguide, F, made in sections, adapted to and arranged to slidelongitudinally on each other, as specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

FREDERICK NEvEeoLn.

Witnesses HERMANN MOESSNER, HARRY SMITH.

